x/ 12 -7= x/4
multiply 12 both sides of above equation we will get
x- 84 = 3x
3x-x = -84
2x+84= 0 ( equivalent form)
Answer:
Step-by-step explanation:
6. 78-2(3+16) /4
(78-2x19)/4
( 78 -38)/4
40/4=10
7.
(66/11)3 -6*8
6x6x6 -48
216-48=168
8.
10/7+2(8-11/2)
10/7+2(8-5.5)
10/7+2*2.5
10/7+5
10/7 + 35/7
45/7 =
There’s about 11 different ways.
To The bottom half it is B. 0.8(9+w) = 0.8w + 72 and 4.8 + 2.2w - 1.4w +2.4 = 0.8w + 72
Hope this helps sorry cant do other half
Answer:
b = 60
Step-by-step explanation:
Using Pythagoras' identity in the right triangle
The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is
b² + 63² = 87²
b² + 3969 = 7569 ( subtract 3969 from both sides )
b² = 3600 ( take the square root of both sides )
b =
= 60